Book-stapling machine



5 Sheets-Sheet 1.

S. E. MOWER.

BOOK STAPLING MACHINE.

(Model.)

Patented Aug. 29, 1882.

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S. E. MOWER.

BOOK STAPLING MACHINE.

No. 263,561. Patented Aug. 29; 1882 WITNESSESZ INVENTOR:

5 Sheets-Sheet 3.

(ModeL) S. E. MOWER.

BOOK STAPLING MACHINE.

No. 263,561. Patented Aug. 29, 1882.

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BOOK STABLING MACHINE. No. 263,561. Patented Aug, 29, 1882.

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BOOK STAPLING MACHINE. No. 263,561. Patented Aug. 29, 1882.

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NETED STATES ArnNr tries.

SAMUEL E. MOWER, OF MILFORD, ASSIGNOR TO HENRY G. THOMPSON & SON, OF NEWHAVEN, CONNECTICUT.

BOOK-STAPLING MACHINE.

SPECIFICATION forming part of Letters Patent No. 263,561, dated August29, 1882. Application filed July 22, 1881. (Model) To all whom it mayconcern Be it known that I, SAMUEL E. MOWER, of Milford, in the countyof New Haven, State of Connecticut, have invented a new and valuahad tothe accompanying drawings, forming part of this specification.

This invention has reference to improve ments in machines for sewingbooks with wire staples; and it consists in the peculiar and novelconstructionfof the parts, as will be more fully described hereinafter,and pointed out in the claims.

Figure 1 is a front view of my improved machine, showing the same inelevation with the adjustable table on which the work is supported.Fig.2 is avertical section in the plane indicated by the broken line yy, Fig.1. Fig. 3 is a sectional view of the clutch mechanism by whichthe machine is stopped and started.

The section is taken through the line was on Fig. 2. Fig. 4 is anenlarged front view of the machine, the cutters and table being removedso as to show the mechanism more clearly. Fig. 5 is a view of the driverand clincher, showing their operation on the staple. Fig. 6 is anenlarged view, showing the cams on the end of the driving-shaft foroperating the clincher and driver, as also the device for regulating thepressure on the wire in feeding the same to the cutters. Fig. 7 is asectional view, showing the device for regulating the pressure and thedisks for feeding the wire. Fig. 8 is an enlarged horizontal sectionalview of the base of the presser-foot, showing the springpressed guidefor holding the staple while it is driven. Fig. 9 is a perspective viewof the yielding guide for the staple, placed on the presser-foot to holdand guide the staple while the same is driven by the driver. Fig. 10 isa sectional view, showing the means used to straighten the wire while itis delivered to the cutters.

Similar letters of reference indicate corresponding parts.

In the drawings, A is the driving-pulley, re-

volving loosely on the driving-shaft B. The hub of the pulley A isprovided with ratchets tor recesses a a, into which a pawl may enter.

the spring-pressed bolt c raises the pawl 0 out of the recess a, thusdisengaging the clutch and stopping the revolution of the shaft B.

As long as the bolt 0 projects the drivingpulley will revolve withoutturning the shaft B, and the machine is stopped. To start the machinethe bolt 0 must therefore be withdrawn, and to do this the bell-cranklever c is connected by means of a fork and pin with the bolt 0 and bymeans of a rod to a foot-treadle or similar device, so that as long asit is desired to run the machine the bolt 0 is held back, and as soon asthe machine is to be stopped the bolt is pushed out by the coiled springbehind the bolt. The usual operation performed is to place the book orother article into which the staple is to be driven in the properposition on the table, withdraw the bolt 0 by means of a foot treadle ora lever operated by one hand, thus allowing the pawl cto enter one ofthe recesses a a in the hub of the driving-pulley and allow the bolt 0to shoot out so as to intercept the wing c of the pawl and disengage thesame the instant one revolution has been made, as in this machine ateach revolution of the driving-shaft B one staple is cut, driven, andclinched. The book is quickly moved to receive the next staple, the boltwithdrawn, and the operation repeated.

To the front end of the shaft B the double cam D is secured. One of theparts, 6, of this double cam operates the clinching device by forcingthe same down against the force of a coiled spring, and, by suddenlyreleasing the same, allowing the clincher to rise'suddenly and clinchthe staple by a blow. The other part, f, of the double cam operates thepresser and gives to the same a fixed motion, and to the face of thiscam the driver G is connected by means of a crank-pin, g, so thatpositive motion is imparted to the driver.

E is the clincher-rod, operated by the part c of the double cam D. It issurrounded by the coiled spring a, which is compressed by the cam part0. The shape of the cam is shown in Fig. 6 partly in broken lines.

To the clincher rod E the bracket 0 is secured by means of aclamp-screw, and to the face of the bracket 0 the clinch-plate 0 The endof the clincherplate is curved, so as to bend the ends of the staple.

The presser F, which bends the wire over the anvil to form the staple,as usual in this class of machines, is operated by the cam f, being theforward part of the compound cam 1), secured to the driving-shaft B. Thepresser F through the greater portion of its length surrounds the driverGr, and in its upper end itis provided with the arm f, which bears on acoiled spring, as shown in Fig. 2. The roller f bearing against the camf, carries the presser down with the rotation of the cam, and the coiledspring, bearing against the armf, raises the presser.

G is the driver, connected with the crankpin g on the face of the cams Dby the link g,

. so that positive reciprocating motion is imparted to the driver ateach rotation of the shaft B.

H is the cutterplate, hinged on the pin h, which extends laterally andis provided near its end with a thumb-piece, so that-it can be readilyremoved and a cutter-plate construct ed to cut the wire for any desiredlength of staple be substituted.

In Fig. 1 two sizes of cutter plates H are shown on the right sideot'the figure, the reverse side of the cutters being shown in front. Theupper end of the cutterplate II is provided with the screw it, the endof which enters a groove in the driver when the driver descends and isforcedoutward atthe end of the groove when the driverascends, or beforeit completes the ascent, thus forcing the upper end of the hingedcutter-plate outward and the lower end inward to cut the wire.

As the motion of the driver and presser is positive and the downwardtravel of the recip rocation fixed, it becomes necessary to make thetable on which the work is to be secured together adjustable to thethickness of the work. The table I is therefore made so that it can beadjusted vertically by means of the set-screw i and be secured in thedesired position by the clamp-screws t" i.

It has been shown that the cutter-plate H may be exchanged for a wideror narrower plate, so as to cut longer or shorter wire, to vary thelength of the staple. This change only affects the length of the twolegs of the staple, so as to adjust it to the varying thickness of thework to be secured together.

The width between the legs is not changed, and the staple is bent overthe same anvil by the descending presser, as is well known in the art,and shown, as well as described, in several patents for such machines,which devices for bending the staple and delivering the staple under thedriver forms no part of my present invention.

By varying the length of the wire for the staple itbecomes necessary toadjust thelength of wire fed, which is accomplished by the mechanismshown in Fig. 4.

7c is a pin projecting from the driver G, and K is a segmental gearprovided with the slotted arm 7c, in which the pin moves. Thereciprocation of the driver imparts partial rotation to the segmentalgear K. I1 is another segmental gear, pivotally connected with the shaftof the feed-roll M and geared with the segmental gear K. At eachreciprocation ot' the driver the two segmental gears are turned a fixeddistance through a partial revolution. The feed-roll M is provided witharatchet-gear and the segmentL with a pawl,'so that at the rising of thedriver the pawl will slide overthe ratchet-gear; but the moment itdescends the pawl engages with the ratchet and turns the feed-roll M soas to deliver a given length of wire. Now, considering that this wholemotion will deliver wirejust long enough for the widest cutter-plate orstaples with the longest legs for which the machine is adapted, it willbecome necessary to shorten thismotion when a narrower plate for shorterstaples is to be used, and for this purpose the shield or rider l isadjusted so as to allow the pawl to slide over the shield for apart ofits oscillation and enter the ratchcts at the point where, when it hascompleted its motion, the proper length of wire shall have beendelivered. By thus adjusting the shield Z any length of wire less thanthe length of the oscillation of the pawl can be delivered to thecutter-plates.

N is a revolving roll, between which and the feed-roll M the wirepasses. It (the roller N) is supported on the fixed bearing a, Fig. 7.To secure the positive delivery of fixed lengths of wire, the rolls Mand N must press the wire and hold the same firmly. To insure this andregulate the pressure, I support the shaft m of the feed-roll M in thesleeve m, which is loosely fitted in a hearing, as shown in Fig. 6,partly in section, and I tap the screw m provided with a conical end,into the frame at right angles to the axis of the sleeve m, the centerof the screw at being practically on a line with the upper line of thesleeve an, and with it press the feed-roll M downward against the roll Nwith great force, and when turned in the opposite direction withdraw theconical end and allow the sleeve m and roll M to be raised. A clampnutis provided to secure the screw m in the desired position.

Vire may be taken from a large roll or reel of wire and fed to thismachine automatically by the feed-roll M; but such wire is liable to Ibe bent and must be straightened before the wire is made into staples,and for this purposeI place the grooved disk or perforated cylinder 0 inthe path of the wire and adjust the same so that the wire is deflectedfrom the direct path and is held firmly against the side of the groove,which has a similar effect on the wire as drawing the same through sucha groove placed at an angle with the line of the wire.

In all machines for sewing books with wire staples, whether by hand orpower, it is important to guide the staple until it is driven, so as toprevent the upsetting of the legs of the staple and injury to the bookas well as the machine.

In Fig. 2, below the cutter-plate H, the case P containing a boltsurrounded by a coiled spring is shown. The end of this bolt has twobeveled guides, which are encountered by the descending driver, and areforced inward against the pressure of the coiled spring as the driverdescends. In Figs. 8 and 9 the same device is shown enlarged. p is thespringpressed bolt contained in the case P, and pp are the beveledguides. A staple is shown resting on the beveled guides.

Whenitisconsideredthatthelegsofthe staple sin Fig. 9 are guided ingrooves (not shown) in the presser,-it will be apparent that when thedriver descends on the staple the springpressed bolt to which the guides12 p are secured,or of which they form the projecting ends, will beforced back as the driver descends and forces the staple into the work,until the staple is driven, the legs will be sustained on all sides andcannot bend under the force of the driver, and thus a staple can bedriven through anything softer than the staple without bending the same.

It is of much practical value to make the cutter R (fixed to the frameand forming the cutter, acting in connection with the outer end ofthecutter-plate H) concave or channeled, so that the short ends of wirethat are fed farther than the width of the cutter-plate, being cut offat this place, will not adhere to the cutter and get under thecutter-plate, but will be pushed forward by the succeeding ends and.discharged at the end of the channel.

The machine as constructed will deliver wire to the cuttersautomatically,will cut the wire, bend the staple, compress the material,drive the staple, and clinch the same, all at one revolution of thedriving-shaft B, and can only make one revolution unless the operativeshall keep the bolt 0 withdrawn, when it will continuously perform allthese operations at one revolution of the shaft.

An active person can accomplish an im mense amount of work on one ofthese machines with little labor. All the parts are strong, simple inconstruction, and durable. The adjustable table allows all other partsto move with strong fixed connections, so as to make an easy-running,durable machine.

Having thus described my invention, I claim as new and desire to securebyLetters Patent- 1. The combination, with the shaft B and the doublecam D, secured to said shaft, of the presser operated by one of theparts of said cam, the driver connected with said cam by link andcrank-pin, and the clincher operated by the other part of said cam,substantially as described.

2. The combination, with the clinching-rod E, provided with the bracket0 and clinchplate 6 of the coiled spring 6 and the cam e, constructed tocompress the spring and suddenly release the clincher, so as to clinchthe staple with a blow, as described.

3. The combination, with the clinching-rod provided with a spring, andan adjustable bracket provided with a clinching-plate having a. curvedsurface, of a cam constructed to compress the spring and suddenlyrelease the clincher, so as to clinch the staple by a blow and bend theends, as described. 4. The combination, with the wire-feeding device andthe cutters, of the disk 0, provided with a channel set at an angle withthe feedchannel of the wire, and constructed to straighten the wire, asdescribed.

5. In a machine for binding books with wire staples, the cutter It,provided with the groove or channel 1", constructed to receive the wasteends of the wire, as described.

6. In a machine for sewing books with wire staples, a driving-shaft, adouble cam secured upon said shaft, a presser operated by one of theparts of said double cam, a staple-driver sliding in a way formed insaid presser and connected by link and crank-pin with the cam, aclincher operated in one direction by the other part of said cam, aspring for operating said clincher in opposition to the cam, and a tableadjustable in accordance with the thickness of the book to be sewed, thewhole constructed, combined, and operating as and for the purpose setforth.

SAMUEL E. MOWER.

Witnesses: I

HENRY G. THOMPSON, A. G. WETMoRE.

It's

